Ingredients
Method
Preparation
- Preheat your oven to 350°F (177°C) and line a 12-cup muffin pan with cupcake liners.
- Place the unsalted pistachios in a food processor and grind until they form fine crumbs.
- In a medium bowl, whisk together the cake flour, baking powder, baking soda, salt, and 3/4 cup of the pistachio crumbs until evenly combined.
- In a large mixing bowl, beat the softened butter and granulated sugar on medium speed until the mixture is light and creamy, about 2 to 3 minutes.
- Add the egg whites, vanilla extract, almond extract, and sour cream to the butter and sugar. Mix until combined.
- Gradually add the dry ingredients to the wet mixture, mixing just until incorporated.
- Slowly add the whole milk and mix until the batter is smooth.
- If desired, add 1 drop of green gel food coloring and fold gently.
Baking
- Divide the batter evenly among the cupcake liners, filling each about two-thirds full.
- Bake for 19 to 22 minutes, or until a toothpick inserted in the center comes out clean.
- Remove the cupcakes from the oven and transfer them to a wire rack. Let them cool completely before frosting.
Making Frosting
- Place the freeze-dried strawberries in a food processor or spice grinder and grind to a fine powder.
- In a mixing bowl, beat the softened butter until creamy. Gradually add the confectioners’ sugar, then add the strawberry powder, heavy cream, and vanilla extract.
- Beat on medium-high until the frosting is smooth and spreadable. Optionally, add a pinch of salt.
Assembling
- Pipe or spread the strawberry buttercream onto the cooled cupcakes.
- Garnish with the remaining pistachio crumbs and fresh strawberry slices if desired.
Storage
- Store any leftovers in the refrigerator for up to 3 days.
Nutrition
Notes
Make sure all ingredients are at room temperature for the best results. Do not over-mix the batter once the dry ingredients are added.